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Finding the Fourth Proportional to 203,436.88, 280,759.44 and 112,801.84

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Solution

The fourth proportional to 203,436.88, 280,759.44 and 112,801.84 is: 155,675.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,436.88 : 280,759.44 = 112,801.84 : x
  2. Step 2: Convert to fraction form
    203,436.88/280,759.44 = 112,801.84/x
  3. Step 3: Cross multiply
    203,436.88x = 280,759.44 × 112,801.84
  4. Step 4: Simplify right side
    203,436.88x = 31,670,181,429.37
  5. Step 5: Solve for x
    x = 31,670,181,429.37/203,436.88
  6. Step 6: Final answer
    x = 155,675.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.